var __nonMSDOMBrowser = (window.navigator.appName.toLowerCase().indexOf('explorer') == -1);

function WebForm_FireDefaultButton(event, target) {
    if (event.keyCode == 13) {
        var src = event.srcElement || event.target;
        if (!src || (src.tagName.toLowerCase() != "textarea")) {
            var defaultButton;
            if (__nonMSDOMBrowser) {
               defaultButton = document.getElementById(target);
            }
            else {
                defaultButton = document.all[target];
            }
            if (defaultButton && typeof(defaultButton.click) != "undefined") {
                defaultButton.click();
                event.cancelBubble = true;
                if (event.stopPropagation) event.stopPropagation();
                return false;
            }
        }
    }
    return true;
}